Crabs was spot on with B.O.F. and Horror of Dracula.
Horror Express, Children of the Corn, The Body Snatcher (1945), Night of the Living Dead, and Suspiria are others you and her may enjoy.
Ooh! I know! The Fog (1979) would be perfect! No sex, minimal profanity (if any) and plenty of creepy ghost-slasher excitement and chilling atmosphere!
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